Waxing machine



1934. A. POTDEVIN 1,968,911

1 WAXING MACHINE Filed Fb. 7, 1931 '3 Sheets-Sheet 1 kg N INVENTOR.

ATTORNEYS.

Aug. 7,v 1934. A, POTDEVIN WAXING MACHINE Filed Feb. 7, 1931 3Sheets-Sheet A TTORNEYS.

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Aug. 7, 1934.

A. POTDEVIN' V WAXING MACHINE Filed Feb. 7. 1931 3 Sheets-Sheet 3 fINVENTOR.

52 q gwe, ATTORNE s.

Patented Aug. 7, 1934 PATENT OFFICE WAXIN G MACHINE Adolph Potdevin,Garden City, N. Y., assignor to Potdevin Machine Company, Brooklyn, N.Y., a corporation of New York Application February 7,

11 Claims.

This invention relates to an improvement in waxing machines for waxingpaper webs, and has for one'of its objects the provision of a machinewhich may be operated continuously, and

in whichthe wax may be applied in stripes if desired as distinguishedfrom waxing the entire surface, means being provided whereby thelocation of the stripes on the web may be varied.

t In the drawings accompanying this applicaion:

Fig. 1 is a more or less diagrammatic view of a machine embodying myinvention;

Fig. 2 is a part sectional elevational view of the apparatus adjacentthe wax tank;

Fig. 3 is a sectional plan substantially on the line 3-3 of Fig. 2;

Figs. 4and 5 are perspective views of a section of paper web waxed in myimproved machine;

Figs. 6 and '1 are details of a presser plate constituting part of themachine; and

Fig. 8 is a detail of rack and pinion mechanism provided for certainadjustments.

Referring to the drawings in detail, 1 designates a supply roll fromwhich the paper web, designated 2, is drawn through the machine andfinally wound up as shown at 3. Intermediate the supply roll 1 and thefinished roll 3 is an open top vat or tank 4 which contains the wax 5which is to be applied to the paper. Rotating in this wax-5 is adrivenwaxing roller 6.

It is to be understood that the type of drive employed in the machine isimmaterial to my invention and hence the same will not be described indetail.

Adjacent the periphery of the waxing roller 6 and in contact therewithis a doctor blade 7 which, as will be described, is adjustablerelatively to the waxing roller, this blade being provided for thepurpose of regulating the amount of wax upon the roller.

Above the waxing roller is an adjustable plate 8 provided for thepurpose of regulating the contact of the web 2 with the roller, thisplate being adjustably mounted so that its position relatively to thewaxing roller may be adjusted to reduce to the minimum sucking of airbetween the paper web and roller and formation of bubbles from thissource. The web as will be seen from the drawings passes over a guideroller 9 and then downwardly between the plate 8 and the periphery ofthe waxing roller. The roller 9 is also adjustably mounted.

Intermediate the plate 8 and doctor blade 7 are adjustably mountedblocks designated 10.

1931, Serial No. 514,123

These blocks may be of wood, for example, and are maintained in contactwith the periphery of the waxing roller, and are in the nature ofscrapers for the purpose of removing the wax from that part of theroller with which they con- 60 tact so that instead of the entire widthof the web of paper being coated the web will be striped, those portionsof the web corresponding to the location of these blocks being left freeof wax. v435 After the paper web moves out of contact with the roller 6it passes under a guide roller 11, also adjustably mounted and then overa plate or ironer 12. It is to be noted that the doctor blade '7, blocks10 and plate 12 are all mounted above the tank or vat so that all waxremoved thereby returns to the tank.

The paper next passes between the rollers 13 and 14. The roller 13 isadjustable in relation to the roller 14 and is provided with a rubbercovering, while the roller 14 is heated. The rollers 13 and 14 may beadjusted so that the waxed side of the web will come just close enoughto the surface of the heated roller 14 to derive a leveling eifect ofthe wax from the hot roller without coming into actual contacttherewith, or the roller .13 may be adjusted low enough to have thewaxed side of the web come into actual contact with the hot surface ofroller 14, or roller 13 can be adjusted to subject the web to an actualsqueezebetween the two rollers, as the nature of the work may demand.The web then passes about chilling rollers 15 and 16, each of which isprovided with a pipe 17 forcirculating a cooling fluid therethrough andfrom thence the web is wound up in finished condition at 3.

. The doctor blade 7, as will be seen from Fig. 3, extends completelyacross the periphery of the waxing roller 6 and is mounted on a plate 18which extends transversely of the machine. This plate is in turnadjustably secured by screws 19 to a plate 20 lying beneath it. Theplate 18 is slotted as shown at 21 so that the platetogether with theblade may be adjusted toward and away from the periphery of the waxingroller 6 thereby to regulate the depth of the wax on this roller.

As above mentioned 10 designates blocks which are adapted to contactwith the periphery of the roller 6. These blocks are preferably of woodmounted on arms 22. These arms are adapted to pivot about a rod 23extending transversely of the machine and at their rear are providedwith an adjusting screw.24, a spring 25 surrounding these screws so thatthe blocks are yieldingly 1 The setting of the screws 2e determines thepressure of the blocks against the roller. When the two blocks 10 areemployed they will remove the wax from the roller so that the web 2 ofthe paper being waxed will only have wax applied to the portiondesignatedj26 in Fig'l4, the two portions 27 and28 at eachside of thisw'axed'portion being unwaxed. It is sometimes desirable to wax theportions 29 and 30 of the paper shown in Fig. 5 and to leave the middleportion 31 unwaxed in which event a single block is substituted for thetwo blocks 10, this block being supported in the arms 22 but centrallylocated with respect to the roller 6 instead of adjacent each endthereof, i. e., adjacent each side of the web being treated.

It will be appreciated, furthermore, that the blocks 10 may besubstituted by other blocks of different width or they may bedifferently disposed so as to stripe or wax the paper as desired.

As above mentioned the paper web after it passes over the guide roller 9passes under a plate 8 by which it is brought into contact with the faceof the waxing roller. This plate 8 is mounted in an adjustable bracket32 extending transversely of the machine, this bracket being carried byrails 33' at: each side of the machine and held to these rails by bolts34. The bracket is slotted as shown at 35 so that it may be moved alongthe rails lengthwise of the machine to vary the distance between theplate and the face of the waxing roller. In addition to this adjustmentthe plate is held to its bracket 32 by screws 35 adjacent one end of theplate while the end adjacent the periphery of the roller 6 is adapted tobe adjusted by adjusting screws 36 which pass down through the bracketand into engagement with the plate so as to place the plate undertension. By varying the setting of these screws the plate may be furtheradjusted as will be appreciated. It will be seen that this adjustablemounting of the plate enables the plate to be adjusted at such an angleto the periphery of the roller 6 that trapping of air between the paperweb and surface of the roller 6 with consequent formation of bubbles onthe face of the web is reduced to a minimum.

The guide roller 9 over which the paper passes as it comes from thesupply roll is carried on a shaft 37 mounted in bearings in bearingmembers 38 carried at each side of the machine, each of these bearingmembers extending upwardly and being provided with pinions 39. The pin=ions 39 mesh with fixed vertically extending racks 40. The rails 33 areclamped at one end by bolts 33' to the racks 40 so as to be adjustedvertically. By rotating the pinions 39 it is obvious that the roller 9can also be adjusted vertically.

The guide roll 11 is supported on a shaft 41 mounted in bearings inbearing members 42 similar to the bearing members 38. Each bearingmember is equipped with a pinion 44 engaging a rack 43 similar to racks40. The rails 33 have an extension 45 clamped to the rack 43 by bolts45*. If the pinions 44 be rotated the roller 11, it is obvious, can beadjusted vertically to vary its position with respect to member 12 and.with respect to roller 6.

The ironer 12 which engages the waxed side of the paper as the webleaves roller 11 is in the nature of a plate 46 extending transverselyof the -machine and hence transversely of the web 2, this 48 throughwhich steam or hot water is passed a 1,ees,911

held against the periphery of the waxing roller 6.

so as to heat the plate 46. It will be appreciated that adjustment ofthe roller 11 above described will vary the pressure of the ironeragainst the coated side of the web.

The plate 46 is provided in the edge which contacts with the web withserrations 46'. These serrations as will be seen from Figs. 6 and 7 aremore or less triangular in shape, and as the plate is adjusted rotatablyin a clockwise direction, as viewed in Fig. 2, it will be appreciatedless wax will be removed from the webs. The contrary is of course trueon adjustment in the opposite direction.

After leaving theplate 46 the web, as above pointed out, passes beneaththe roller 13 and between it and a hot roller 14 which lies beneath it,the unwaxed face of the web contacting with the roller 13.

The roller 14 is heated by steamer hot water,

for instance, supplied through pipe 50. After leaving roller 13 thepaper, as before explained, passes about chilling rollers 15 and 16 andis finally wound up at 3. It will be seen from the foregoing that mymachine is very simple and inexpensive in construction and operation,and that the various adjustments above described insure a smooth evencoating of the paper.

What I claim is:-

1. In an apparatus of the class described, the combination of a waxingroller, adjustably mounted guide rollers at either side of the waxingroller, a plate immediately above the waxing roller and intermediate theguide rollers, a doctor blade for regulating the wax coating on saidroller, said blade and plate being adjustable relatively to theperiphery of the roller to regulate the amount of wax on the roller andthe angle with which the paper contacts with the roller.

2. In apparatus of the class described, the combination of a waxingroller, means for regulating the coating of wax on the roller, 2. plateadjustably mounted adjacent the periphery of the waxing roller forcontacting a continuously moving paper web with the wax on the peripheryof said roller, at a predetermined angle and a heated adjustable plateadapted to be contacted by the waxed surface of the paper after leavingthe roller.

3. in an apparatus of the class described, the combination of a waxingroller, an adjustable doctor blade for regulating the amount of wax onthe surface of the roller, a plate adjustably mounted for contacting acontinuously moving paper web with the surface of said roller, and meansintermediate the doctor blade and plate for removing predeterminedportions of the wax from the surface of said waxing roller whereby onlya part of the surface of the paper is waxed.

4. In a machine of the class described, a waxing roller, a plate formaintaining a web of paper being treated in contact with the surface ofthe waxing roller, and guide rollers at each side of 'the plate andadjustable vertically, adjustment of the rollers with respect to theplate varying the pressure of the web on the waxing roller.

5; In a machine of the class described, the combination of a waxingroller, a pair of guide rollers, a plate intermediate said guiderollers, and rack and pinion mechanism for adjusting the guide rollersvertically and independently relatively to the plate to vary thepressure of the paper web upon the periphery of the waxing roller.

6. In a machine of the class described, the com bination of a waxing rller, 8. pair of spaced guid= mg rollers, an intermediate plate to bringa corn 159 rocaon tinuously moving web of paper into contact with thesurface of said waxing roller, mounts for said guiding rollers, pinionscarried by said mounts and fixed raclzs cooperating with said pinionswhereby said guiding rollers may be raised and lowered with respect tothe waxing roller.

7. In a machine of the class described, the combination of a waxingroller, a chilling roller, a guide roller and a heated rollerintermediate said waxing roller and chilling roller, the guide rollerbeing so located with respect to the heated roller and the chillingroller that a web of paper passing from the waxing roller to thechilling'roller will be maintained out of physical contactwith theheating roller but will travel adjacent the surface thereof.

8. In a machine of the class described, the combination of a waxingroller, a chilling roller, a guide roller and a heated rollerintermediate said waxing roller and chilling roller, said guide rollerbeing so located with respect to the chilling roller as to maintain thewaxed face of a web of paper passing from the waxing roller to thechilling roller close to but out of contact with the periphcry of theheated roller.

9. In a machine for waxing paper, the combination of a waxing roller, achilling roller and a guide roller and a heated roller intermediate saidwaxing roller and chilling roller, said guide roller and said heatedroller being adjustably mounted to maintain the paper out of contactwith the heated roller.

10. In a machine of the class described, the

combination of a waxing roller for applying wax to one face of a paperweb, a plate adapted to contact with the waxed" face of the web, andadjustable about an axis transverse of the web, the face of said platecontacting with the web being provided with converging serrations ofvarying depth, the width and depth of. the serrations increasing as theplate is adjusted in a direction opposed to the direction of travel ofthe paper.

11. In an apparatus of the class described, the combination of a waxingroller, guide rollers adjustably mounted at either side of the waxingroller, and a plate immediately above the waxing roller and intermediatethe guide rollers for engaging a paper web passing about the guiderollers with said waxing roller, said plate being adjustable to vary theangle between the periphery of the waxing roller and the web to restrictthe entry of air between the web and roller.

ADOLPH PO'IDEVIN.

Mill

